[PD] Smoothing midi control input ?

[Pierre Massat]

Thank you very much IOhannes.

Pierre.

2015-02-22 21:43 GMT+01:00 IOhannes m zmölnig <zmoelnig at iem.at>:

> On 02/22/2015 09:05 PM, Pierre Massat wrote:
>
> > The input from the controller is first normalized to the delay line max
> > length, then passed to a [pack 0 20], then to a [line~], before affecting
> > the delay length. I thought the line would smooth the control input, but
> > apparently it's not. Are the 20 ms for the [line~] too short
>
> yes most likely.
> 20ms is equivalent to 50Hz which is well notifiable (you are modulating
> your input signal with a 50Hz half-period)
>
> as a rule of thumb, use something above 50ms (==20Hz which is basically
> inaudible), the higher the smoother (though obviously the higher you
> get, the longer it will take to reach the target; so having very long
> lengths might become inacceptable as well)
>
>
> > , or am I not
> > doing it the proper way ? I actually don't know what happens to line~
> when
> > a new value is given to it before the 20 ms are over.
> >
>
> [line~] interpolates from the *current* value to the target value in x ms.
> the *current* value is the value it currently has.
> so if you start with [0, 1.5 3000(, and after 1 second send it a
> [0 100(, it will start the second ramp from 0.5 (because this is where
> the 1.5/3000 ramp was interrupted).
>
> gfrdsa
> IOhannes
>
>
>
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